pleisher



(No Model.)

C. RALEXANDER. STOP MOTION FOR TWISTBRS, Oc.

Patented June 1, 1886.

INVENTOR:

`yN-Es Es:- n` MM UNITED STATES PATENT @Erice y CHARLES F. ALEXANDER, OFPHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF THREE-FOURTHS TO S. B. FLEISHER,B. XV. FLEISHER, AND M.

FLEISHER, ALL OF SAME PLACE.

STOP-MOTION FOR TWISTERS, SLC.

SPECIFICATION forming part of Letters Patent No. 342,990, dated June 1,1886.

Application filed September 6, 1884. Serial No. 142,368. (No model.)

To all whom it may concern:

Be it known that I, CHARLES F. ALEXAN- DER, a citizen of the UnitedStates, residing in the city and county of Philadelphia, State ofPennsylvania, have invented a new and useful Improvement in Stop-Motionsfor Twisters, Spoolers, Thread-Vinders, Ste., which improvement is fullyset forth in the following specication and accompanying drawings, in roWhich- Figure 1 represents a vertical section in line a' zr, Fig. 2, ot'a twisting-machine having applied thereto a stop-motion embodying myinvention. Fig. 2 represents a top or plan view of the machine shown inFig. l, partly broken away. Fig. 3 represents a view of a portiondetached from the left side of Fig. l. Fig. 4 represents a detached Viewof a holder for a bobbin-spool, Src., as embodied in my invention. Fig.5 represents a horizontal section of a portion in line y y, Fig. l.

Similar letters of reference indicate corrcspending parts in the severalfigures.

My invention consists of a stop-motion for a twister, spooler,thread-Winder, Snc., the

same' embodying a balanced holder for a bobn bin, spool, quill, &c., andmechanism operated thereby for operating the shipper or stopping deviceof the machine, and other details of construction, as will behereinafter fully set forth.

Referring to the drawings, A represents the frame ofthetwisting-machine, and A represents a beam or cross-bar at the topthereof,

on which is mounted the balanced holder B for a bobbin, spool, quill,&c., the same consisting of. a suitable spindle or pin, which isprovided with knife-edges or journals C, which project from the spindlebelow the bobbin,

4.o Src., and rest upon bearings D, which are secured to the beam A ofthe machine.'

Supported on a proper part of the frameA below the holder is a slidingframe, E, which has at top a rotary bar, E', from which rise arms F, solocated in proximity to the lower ends of the spindles of the holdersthat when the latter are in their normal positions during the operationof the machine they arms F of the frame E pass said spindles withoutcontact therewith, as shown by the full lines, 5o

Fig. 1.

The rod E', which is horizontally arranged, has its bearings in bossesor 'eyes a in the upper part of the frame E, and one end of said rod hasconnected with it a toe, G, which pro- 5 5 jects toward avertically-moving stopping-bar,

H, the same being guided in a proper part,

' A", of the frame A of the machine, and having a shoulder, G', which isadapted to engage with said part, said toe being so disposed in 6orelation to thc bar H that when the rod E is rotated by coming incontact with the holder B the toe is advanced against the bar H, and,owing to its partial rotary motion, releases said bar, so that thelatter is permitted to rise, 6 5 as will be hereinafter explained.

J represents a spindle, which is mounted on the frame A and receivesmotion from a drum or pulley, b, and a belt or band, c, the latterpassing around a cone or whirl, d, on said spindle. The upper end of thebar H is beneath the top roller, K, of a set of rollers, K K2 K, betweenwhich the thread or yarn passes in this case from the holder B to thespindle J, the lower rollers, K K2, being properly mounted on the frameof the machine and receiving motion from the driving-shaft by means ofthe gear-wheels R and R2.

Connected with the upper end of the bar H is an upwardly-projecting arm,G, which, with the bar, forms a fork, said arm being arranged betweent-he back roller of the set of rollers K and the guide G, adjacent tothe holder B.

On the base of the cone or whirl d of the spindle J is a lug, J', and onthe. bar H is a finger, H', the latter being adjacent to said lug, sothat when vthe baris raised the finger strikes the lug and interlockstherewith.

On the bar H is a pulley, L, having a horizontal axis, the same beinggrooved and serving to guide the belt, band, or cord c. In order toprevent displacement of said belt there is connected with the bar H aguard, M, somewhat of the form of a hook, the same overhanging theperiphery of the pulley.

l In order to raise the bar H when its shoulder G is released from thepart A of the frame A, there is pivoted to the same and a suitablebearing on the frame A a weighted lever, N, the normal position of thebar and connected parts being shown in Fig. 1.

Depending from the beam Aare hangers I, which have slots e in the lowerportions,

, through which the lower ends of the spindles or pins of the holders Bproject, said spindles or pins being provided with the `journals orknife-edges C, which are hung freely on the bearings D, secured to thebeam A, as has been stated, and readily secu in Fig. l.

The rod E carries a weight, E", the tendency of which is to preventimproper rotation of said rod, and when therodis rotated to return it toits normal position, holding the toe G from the bar I-I.

In order to cause the belt or band c to enter its groove h in the coneor whirl d when said belt is being lowered by the bar II, the said coneor whirl is formed with a spiral groove, k, which extends from the upperpart of the cone to said groove h, so that as the bar H is lowered thebelt or band engages with said spiral and is thus directed to the grooveh. The frame E receives reciprocating motion in one direction by meansof a cam, Q, which is connected with a pulley, Q', the latter beingmounted on a shaft, R, and receiving power from any proper part of themachine, the said cam engaging with an arm, S, which projects laterallyfrom the frame E, and receives mot-ion in one direction from said cam,the motion being communicated to the frame. The opposite motion isaccomplished by means of weights T, attached to cords T, which passaround pulleys V on the frame A, said cords being connected with theframe E. In lieu of the cords T and weights T springs may be used, asshown in the dotted lines in Fig. 2.

The operation is `as follows: The holder B is held against one. of thewalls of the slot e, and thus clear of the path of motion of the arm orlug F, of the rod E', by the tension of the yarn or thread. Should thelatter break the holder is free to vibrate, which it does by the actionof gravity, and it swings against the opposite wall of the slot e, andis in the path oi' the arm or lug F, whereby the latter strikes theholder and causes the rod E to partially rotate, and as the toe Greleases the shoulder G of the bar I-I from the part A of the frame, thebar is raised by the weighted lever N lifting the top roller, K, of theset of rollers K K K2, and also the yarn from the back roller, K2, ofthe lower roller, thereby preventing the passage or feeding of the yarnor thread. Simultaneously therewith the pulley L, which rises with thebar H, forces the band or belt c upward from the base of the cone orwhirl d to the narrow part thereof,

whereby the band or belt is slackened, the` yarn or thread is tied orunited, the created tension of the same again draws the holder B to itsnormal position, clearing it of the path ofthe lng F, and the rod E bythe action of its weightE is also restored to its normal condition,disengaging the toe G from the bar H. The bar II is drawn down by itsfoot or handle H", with which said bar is provided, so that the shoulderG engages with the frame A, and the band c is restored to its groove hin the cone or whirl d, and the lug J and finger H are disconnected, thespindle J then again rotating and the yarn receiving its tension. Theupper roller, K, of the set of rollers K K KIl is also lowered, and thuspermitted to rotate by contact with the lower rollers, so as to feed theyarn or thread to the spindle.

'The rod E is shown diagonal in order to have a toe at each end foroperation on opposite sides of the machine ior purposes of duplicationof work, in which case the beam A also extends diagonally, and theholders B are disposed in like order on said beam.

Subject-matter described in this speciication and 'shown intheaccompanying drawings relating to the construction of the balancedholder is not claimed herein, such boing described, illustrated, andclaimed in an application foran improvement in bobbin-holders filedSeptember (i, 1884, and bearing Serial N o. 142,367.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

l. A balanced holder for a bobbin, in combination with a frame carryinga weighted rotary bar provided with arms adapted to be brought incontact with said bobbin, means, substantiall y as described, forreciprocating said frame,a toe secured to said bar and engaging asliding bar, a sliding bar carrying a roller and a thread guide, and aweight adapted to operate said sliding bar, all substantially as and forthe purpose set forth.

2. The frame A and bar A', in combination with the balanced holder B,the frame E, the weighted rotary bar E', having arms F, and means,substantially as described, for imparting reciprocating motion to saidframe E, all substantially as and for the purpose set forth.

3. The frame A and bar A, in combination with the holder B,fran1e E,barE,l1aving arms F and toe G,bar H,having shoulder G andupwardly-projecting arm G, rollers K K K",the weighted lever N, andmechanism, substantially as described, for imparting a reciprocatingmotion to said frame E,all substantially as and for the purpose setforth.

4. The frame A and bar A, in combination with the balanced holderB,having a depending spindle, a bar adapted to be rotated by contactwith said holder, a sliding bar with a shoulder adapted to be disengagedby a toe secured to said rotary bar and provided with a weighted lever,and means,substantially as described,for reciprocating saidfirst-described IOO IIO

IIS

' frame, hangers l), having slots e, frame E,

bar, all substantially as and for the purpose l set forth. f

5. A balanced bobbin-holder having a depending spindle, in combinationwith the end and a shoulder, G, the rollers K K K",

the weighted lever N, guard M, pulley L, spindle J, journaled in theframe A and provided With the Whirl d, having a circular groove, h, andspiral groove k, band c, and drum I), substantially as described.

7. The frame A, with a balanced holder, in combination with a framecarrying a Weighted rotary bar and having the laterally-projecting armS, the shaft R, having the pulley Q', and cam Q,Inounted thereon,saidarm S engaging with said cani, cords T', with weights T,

and pulleys V, all substantially as and for the 3o purpose set forth.

CHARLES F. ALEXANDER.

Vi tn esses:

JOHN A. WIEDERSHEIM, A. P. GRANT.

